The trial is taking place at:
T

Tampere University Hospital | Tampere Heart Hospital

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A Study to Assess Safety, Tolerability and Preliminary Efficacy of Bexmarilimab in Combination With Standard of Care in Patients With Hematological Malignancies (BEXMAB)

F

Faron Pharmaceuticals

Status and phase

Enrolling
Phase 2
Phase 1

Conditions

Relapsed/Refractory AML
Myelodysplastic Syndromes
Acute Myeloid Leukemia
Chronic Myelomonocytic Leukemia

Treatments

Drug: Venetoclax
Drug: Bexmarilimab
Drug: Azacitidine

Study type

Interventional

Funder types

Industry

Identifiers

NCT05428969
2021-002104-12 (EudraCT Number)
FP2CLI004

Details and patient eligibility

About

This is a study to assess the safety of increasing dose levels of bexmarilimab when combined with standard of care (SoC) in patients with myelodysplastic syndrome (MDS) or chronic myelomonocytic leukemia (CMML) or acute myeloid leukemia (AML); Phase 1 aims to identify the recommended phase 2 dose (RP2D) of bexmarilimab based on safety, tolerability and pharmacological activity; Phase 2 will investigate the preliminary efficacy of the combination treatment in selected indications from Phase 1.

Full description

This is a multicenter Phase 1/2 open-label, study to assess the safety, tolerability and preliminary efficacy of increasing doses of bexmarilimab (FP-1305) in patients with intermediate, high or very high-risk MDS, CMML with 10-19 % marrow blasts, CMML/MDS with failure to hypomethylating agent (HMA), or in patients with newly diagnosed AML non-fit for induction therapy or relapsed/refractory AML. The Phase 1 part of the study will identify a safe and tolerable bexmarilimab dose amongst four predefined dose levels using a bayesian optimal interval (BOIN) dose escalation design to identify the maximum tolerated dose (MTD) of bexmarilimab when administered in combination with SoC. The Phase 2 of the study is an expansion phase to further evaluate the safety and preliminary efficacy of bexmarilimab treatment at RP2D combined with SoC and will follow a Simon's 2-stage design for each of the indications selected to continue forward from Phase 1. This design allows for the investigation of bexmarilimab activity and preliminary response assessments tailored to each indication and allows early stopping in case of futility using a minimum number of patients. Patients from Phase 1, with the selected indication to be investigated in Phase 2, that have been treated at RP2D may be counted towards the number of patients for Phase 2. Both study phases consist of a screening period, a treatment period, an end of treatment (EoT) as safety follow-up and disease progression/survival follow-up.

Enrollment

181 estimated patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

* Patient ≥ 18 years of age who presents with one of the following conditions: * Morphologically confirmed diagnosis of MDS with revised International Prognostic Scoring System (rIPSS) risk categories: intermediate, high and very high. * Morphologically confirmed diagnosis of CMML-2 with indication for azacitidine treatment. * CMML and MDS patient with response failure to HMA or therapy regimen including HMA. * Morphologically confirmed diagnosis of r/r AML following at least 1 line of prior therapies with indication for azacitidine treatment. * Morphologically confirmed diagnosis of AML in patients unfit for induction therapy with indication for azacitidine-venetoclax treatment. * Leukocyte count \< 20 x10\^9/L (\< 25 x10\^9/L for newly diagnosed AML). Hydroxycarbamide use is permitted to meet this criterion in MDS and AML but not in CMML. * Adequate renal function. * Adequate liver function.

Exclusion criteria

* Patient with acute promyelocytic leukemia (APL) or myeloproliferative CMML as defined by leukocyte count \> 13 x10\^9/L. * Eastern Cooperative Oncology Group (ECOG) performance status \>2 (except newly diagnosed AML where ECOG 3 is allowed for patients \< 75 years). * Allogeneic transplantation less than 6 months prior screening. * Patient with active auto-immune disorder (except type I diabetes, celiac disease, hypothyroidism requiring only hormone replacement, vitiligo, psoriasis, or alopecia). * The patient requires systemic corticosteroid (≥10 mg/day prednisone or equivalent) or other immunosuppressive treatment. * Less than 21 days since the last dose of intravenous anticancer chemotherapy or less than 14 days or five half-lives (whichever is shorter) from a small molecule targeted therapy or oral anticancer chemotherapy before the first study treatment. * Any immunotherapy or investigational therapy within preceding 28 days from the first study treatment. * Pregnant or lactating women. * History of chronic ulcers or clinically relevant liver disease leading to Child Pugh Score C or higher.

Trial design

Primary purpose

Treatment

Allocation

Non-Randomized

Interventional model

Sequential Assignment

Masking

None (Open label)

181 participants in 3 patient groups

Phase 1 - Intermediate/high risk MDS, CMML 10-19%, MDS/CMML failure to HMA, r/r AML
Experimental group
Description:
Standard of care azacitidine as per label; bexmarilimab 4 dose levels at once every week (Q1W) followed by once every 2 weeks (Q2W); 28-day cycle
Treatment:
Drug: Azacitidine
Drug: Bexmarilimab
Phase 1 - Newly diagnosed AML patients non-fit for induction therapy
Experimental group
Description:
Standard of care azacitidine and venetoclax as per label; bexmarilimab 4 dose levels Q1W followed by Q2W; 28-day cycle
Treatment:
Drug: Azacitidine
Drug: Bexmarilimab
Drug: Venetoclax
Phase 2 - Intermediate/high risk MDS, CMML, MDS/CMML failure to HMA, r/r AML & newly diagnosed AML
Experimental group
Description:
Standard of care venetoclax and/or azacitidine as per label plus bexmarilmab
Treatment:
Drug: Azacitidine
Drug: Bexmarilimab
Drug: Venetoclax

Trial contacts and locations

8

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Central trial contact

Inka Pawlitzky, PhD

Data sourced from clinicaltrials.gov

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